I think 47% Black is the answer. I'm afraid Whites have insufficient cohesion compared with Blacks...
You want whites to vote 99% Republican, don't you?
It's about time ;-)
No. I hate that "whites" vs. "blacks" opposition. It's an idiocy when you can guess election results simply looking at district's demography...
Nevertheless, it's reality.
In some districts - yes. That's why i prefer situation of about 45 years ago (when i began to pay attention to US elections), when Democrat could win 75% Republican (on presidential level) district and vice versa. And that's why i passionatly hate present "polarization". In Congress, state legislatures, everywhere. Election prediction, mostly, became so boring...
Well, there are pros and cons on everything. You're right on the one hand, but on on the other hand it makes it easier to assume trends and where races are going. For example, I was very sure the GOP would win NC because of the early voting numbers.
Also, there are still plenty of crossover voters. Look at GOP Govenors in Maryland, Massachusetts, Vermon, Illinois e.g., look at Dem Govenors in Louisiana, Montana e.g.
If I compare this "polarization" to my country, with an appr. 98% Whites electorate, without Registration end so on, there are also lots of Districts, Regions, States that went for the same Party since 1949... I'm living in a constituency/town that wasn't competitive ever. Not for a local election, not for a state election, not for a federal election.
Seems quite normal to me...